Improvement in soda-water cocks



NrrED STATES HENRY FRASER, or Pioro'U, CANADA.

IMPROVEMENT IN SODA WATER COCKS.

Specification forming part of Letters Patent No- 158,267, dated December29, 1874; application filed October 24, 1874.

To all whom it may concern Be it known that I, HENRY FRASER, of Pictou,in the county of Pictou, Province of Nova Scotia and Dominion of Canada,have invented a new and useful Improvement in Soda-Fountain Cook, ofwhich the following is a specification:

Figure 1 is a longitudinal section of my improved cock taken through theline or m, Fig. 2. Fig. 2 is a top view of the lower part of the same.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved soda-fountaincock, which shall be so constructed that there will be no danger inusing it, from the breaking of the small screws by which the two partsare held together, in the cock usually used, and which shall at the sametime be simple in construction, convenient in use, and durable.

The invention will first be fully described, and then pointed out in theclaim.

A is the lower part of the cock, which is screwed into the fountain inthe ordinary way, and upon the top of which is formed a deepring-flange, B, having a screwthread cut in its inner surface to receivethe screw (J formed upon the upper part D of the cock. In the center ofthe top of the part A, and in the center of the lower end of the screw0, are formed circular recesses to receive the ends of the plug E, thehandle F of which passes out through a transverse slot in the flange B.

The vent through the part A passes up in an inclined direction, so thatits upper orifice may be at one side of the center of the recess.

The vent through the upper part D, and through the screw 0, is vertical,so that its lower orifice may be in the center of the plug recess.

The vent through the plug E is inclined, its

upper orifice being in the center of the upper end of the plug E, andits lower orifice being at one side of the center, so that when the plugE is turned into one position the orifices may all correspond, and thevents may be continuous, and when the plug is turned upon its axis thevents may be disconnected or interrupted.

The plug-recesses may have packing placed in them to make the jointstight. The upper part D projects over the upper edge of the flange B,and is provided with a set-screw, G, which, when the upper part has beenscrewed down upon the plug E with the proper force, may be turned downupon the edge of the flange B, and thus prevent the upper part fromworking off or moving. B this construc tion the part D will always beheld squarely in place, and thus will not be exposed. to any unequalpressure. This result cannot be attained when the two parts of the cockare connected by three or more screws, as it is utterly impossible toadjust said screws so accurately that the pressure will be equallydistributed among them, and which unequal pressure is the cause of thebreaking of said screws, and

the consequent danger from their use.

Having thus described my invention, I claim as new and desire to secureby Letters Patent The soda-water cock herein described, consisting ofthe base portion A, flange or shell B, having an internal screw-threiul,and an aperture in its side, the top section 0 D, provided with anexternal screw-thread, the plugvalve E, and handle F, all constructedand combined as herein shown and described.

HENRY FRASER. Witnesses:

MONT HARPER, 1. H. MOFFAT.

